1697381405970 has 16 divisors (see below), whose sum is σ = 4073715374400. Its totient is φ = 452635041584.

The previous prime is 1697381405947. The next prime is 1697381405977. The reversal of 1697381405970 is 795041837961.

It is a super-2 number, since 2×1697381405970² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1697381405977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28289690070 + ... + 28289690129.

It is an arithmetic number, because the mean of its divisors is an integer number (254607210900).

Almost surely, 2^{1697381405970} is an apocalyptic number.

1697381405970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1697381405970 is an abundant number, since it is smaller than the sum of its proper divisors (2376333968430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1697381405970 is a wasteful number, since it uses less digits than its factorization.

1697381405970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56579380209.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 1697381405970 in words is "one trillion, six hundred ninety-seven billion, three hundred eighty-one million, four hundred five thousand, nine hundred seventy".